diff --git a/app/src/main/java/com/example/mypos/data/AditumError.kt b/app/src/main/java/com/example/mypos/data/AditumError.kt
index db9f684..a9393ca 100644
--- a/app/src/main/java/com/example/mypos/data/AditumError.kt
+++ b/app/src/main/java/com/example/mypos/data/AditumError.kt
@@ -1,6 +1,9 @@
 package com.example.mypos.data
 
 object AditumError {
+    const val INVALID_AMOUNT_MESSAGE = "Adjusted amount must be greater than zero"
+    const val INVALID_AMOUNT = "INVALID_AMOUNT"
+
     const val SERVICE_NOT_AVAILABLE = "SERVICE_NOT_AVAILABLE"
     const val SERVICE_NOT_AVAILABLE_MESSAGE = "Failed to connect to Aditum SDK service"
 
diff --git a/app/src/main/java/com/example/mypos/services/AditumSdkService.kt b/app/src/main/java/com/example/mypos/services/AditumSdkService.kt
index 648ec99..8ba1dc4 100644
--- a/app/src/main/java/com/example/mypos/services/AditumSdkService.kt
+++ b/app/src/main/java/com/example/mypos/services/AditumSdkService.kt
@@ -4,6 +4,7 @@ import android.util.Log
 import br.com.aditum.data.v2.enums.InstallmentType
 import br.com.aditum.data.v2.enums.PayOperationType
 import br.com.aditum.data.v2.enums.PaymentType
+import br.com.aditum.data.v2.model.Charge
 import br.com.aditum.data.v2.model.MerchantData
 import br.com.aditum.data.v2.model.PinpadMessages
 import br.com.aditum.data.v2.model.cancelation.CancelationRequest
@@ -17,13 +18,14 @@ import br.com.aditum.data.v2.model.payment.PaymentRequest
 import br.com.aditum.data.v2.model.payment.PaymentResponse
 import br.com.aditum.data.v2.model.payment.PaymentResponseCallback
 import br.com.aditum.data.v2.model.transactions.ConfirmTransactionCallback
+import br.com.aditum.data.v2.model.transactions.PendingTransactionsCallback
 import com.example.mypos.BuildConfig
 import com.example.mypos.data.AditumError
 import com.google.gson.Gson
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
-import java.util.UUID
+
 class AditumSdkService(private val paymentApplication: PaymentApplication) {
     companion object {
         private const val TAG = "AditumSdkModule"
@@ -104,6 +106,7 @@ class AditumSdkService(private val paymentApplication: PaymentApplication) {
         installments: Int = 0,
         paymentType: PaymentType,
         allowContactless: Boolean = true,
+        amountSeasoning: ((Long) -> Long)? = null,
         resolve: (PaymentResponse) -> Unit = {},
         reject: (String, String?) -> Unit = { _, _ -> }
     ) {
@@ -114,6 +117,12 @@ class AditumSdkService(private val paymentApplication: PaymentApplication) {
                     return@launch
                 }
 
+                val adjustedAmount = amountSeasoning?.invoke(amount) ?: amount
+                if (adjustedAmount <= 0) {
+                    reject(AditumError.INVALID_AMOUNT, AditumError.INVALID_AMOUNT_MESSAGE)
+                    return@launch
+                }
+
                 val paymentRequest = PaymentRequest().apply {
                     currency = 986
                     operationType = PayOperationType.Authorization
@@ -146,7 +155,7 @@ class AditumSdkService(private val paymentApplication: PaymentApplication) {
         }
     }
 
-    fun confirm(nsu: String?, resolve: (Boolean) -> Unit = {}, reject: (String, String?) -> Unit = { _, _ -> }) {
+    fun confirm(nsu: String, resolve: (Boolean) -> Unit = {}, reject: (String, String?) -> Unit = { _, _ -> }) {
         coroutineScope.launch {
             try {
                 if (!paymentApplication.ensureServiceConnected()) {
@@ -154,11 +163,6 @@ class AditumSdkService(private val paymentApplication: PaymentApplication) {
                     return@launch
                 }
 
-                if (nsu == null) {
-                    reject(AditumError.INVALID_NSU, AditumError.INVALID_NSU_MESSAGE)
-                    return@launch
-                }
-
                 val callback = object : ConfirmTransactionCallback.Stub() {
                     override fun onResponse(confirmed: Boolean) {
                         resolve(confirmed)
@@ -173,7 +177,7 @@ class AditumSdkService(private val paymentApplication: PaymentApplication) {
         }
     }
 
-    fun cancel(nsu: String?, isReversal: Boolean, resolve: (Boolean) -> Unit = {}, reject: (String, String?) -> Unit = { _, _ -> }) {
+    fun cancel(nsu: String, isReversal: Boolean, resolve: (Boolean) -> Unit = {}, reject: (String, String?) -> Unit = { _, _ -> }) {
         coroutineScope.launch {
             try {
                 if (!paymentApplication.ensureServiceConnected()) {
@@ -181,11 +185,6 @@ class AditumSdkService(private val paymentApplication: PaymentApplication) {
                     return@launch
                 }
 
-                if (nsu == null) {
-                    reject(AditumError.INVALID_NSU, AditumError.INVALID_NSU_MESSAGE)
-                    return@launch
-                }
-
                 val cancelationRequest = CancelationRequest(nsu, isReversal)
 
                 val callback = object : CancelationResponseCallback.Stub() {
@@ -219,6 +218,30 @@ class AditumSdkService(private val paymentApplication: PaymentApplication) {
         }
     }
 
+    fun pendingTransactions(resolve: (List<Charge?>?) -> Unit = {}, reject: (String, String?) -> Unit = { _, _ ->}) {
+        coroutineScope.launch {
+            try {
+                if (!paymentApplication.ensureServiceConnected()) {
+                    reject(AditumError.SERVICE_NOT_AVAILABLE, AditumError.SERVICE_NOT_AVAILABLE_MESSAGE)
+                    return@launch
+                }
+
+                val callback = object : PendingTransactionsCallback.Stub() {
+                    override fun onResponse(results: List<Charge?>?) {
+                        val json = gson.toJson(results)
+                        Log.e(TAG, "onResponse - $json")
+                        resolve(results)
+                    }
+                }
+
+                paymentApplication.communicationService?.pendingTransactions(callback)
+                    ?: reject(AditumError.SERVICE_NULL, AditumError.SERVICE_NULL_MESSAGE)
+            } catch (e: Exception) {
+                reject(AditumError.CONFIRM_ERROR, "${AditumError.CONFIRM_ERROR_MESSAGE}: ${e.message}")
+            }
+        }
+    }
+
     fun deactivate(resolve: (Boolean) -> Unit = {}, reject: (String, String?) -> Unit = { _, _ -> }) {
         coroutineScope.launch {
             try {