diff --git a/src/modules/invoices/providers/invoices.service.ts b/src/modules/invoices/providers/invoices.service.ts
index 3a48e10..9ba2977 100755
--- a/src/modules/invoices/providers/invoices.service.ts
+++ b/src/modules/invoices/providers/invoices.service.ts
@@ -518,12 +518,15 @@ export class InvoicesService {
 
   //*********************************** */
 
-  async payInvoice(invoiceId: string, userId: string) {
-    const queryRunner = this.dataSource.createQueryRunner();
+  async payInvoice(invoiceId: string, userId: string, queryRunner = this.dataSource.createQueryRunner()) {
+    let transactionStarted = false;
 
     try {
-      await queryRunner.connect();
-      await queryRunner.startTransaction();
+      if (!queryRunner.isTransactionActive) {
+        await queryRunner.connect();
+        await queryRunner.startTransaction();
+        transactionStarted = true;
+      }
 
       const user = await this.usersService.findOneByIdWithQueryRunner(userId, queryRunner);
 
@@ -573,16 +576,17 @@ export class InvoicesService {
         paidAt: invoice.paidAt,
       });
 
-      await queryRunner.commitTransaction();
+      if (transactionStarted) await queryRunner.commitTransaction();
+
       return {
         message: InvoiceMessage.INVOICE_PAID,
         invoice,
       };
     } catch (error) {
-      await queryRunner.rollbackTransaction();
+      if (transactionStarted) await queryRunner.rollbackTransaction();
       throw error;
     } finally {
-      await queryRunner.release();
+      if (transactionStarted) await queryRunner.release();
     }
   }
 
diff --git a/src/modules/support-plans/providers/support-plans.service.ts b/src/modules/support-plans/providers/support-plans.service.ts
index db5ea79..52557f9 100644
--- a/src/modules/support-plans/providers/support-plans.service.ts
+++ b/src/modules/support-plans/providers/support-plans.service.ts
@@ -152,6 +152,12 @@ export class SupportPlansService {
 
       await queryRunner.manager.save(this.userSupportPlanRepo.target, userSupportPlan);
 
+      if (supportPlan.isFree) {
+        userSupportPlan.status = UserSupportPlanStatus.ACTIVE;
+        await queryRunner.manager.save(this.userSupportPlanRepo.target, userSupportPlan);
+        await this.invoicesService.payInvoice(invoice.id, user.id, queryRunner);
+      }
+
       await queryRunner.commitTransaction();
       return {
         message: SupportPlanMessage.SUPPORT_PLAN_SUBSCRIBED,
@@ -249,6 +255,12 @@ export class SupportPlansService {
       currentUserSupportPlan.status = UserSupportPlanStatus.CANCELLED;
       await queryRunner.manager.save(this.userSupportPlanRepo.target, currentUserSupportPlan);
 
+      if (newSupportPlan.isFree) {
+        currentUserSupportPlan.status = UserSupportPlanStatus.ACTIVE;
+        await queryRunner.manager.save(this.userSupportPlanRepo.target, currentUserSupportPlan);
+        await this.invoicesService.payInvoice(invoice.id, user.id, queryRunner);
+      }
+
       await queryRunner.commitTransaction();
 
       return {