[server] Fix PAYG notifications and tsCancel

Author: geropl

components/server/ee/src/workspace/gitpod-server-impl.ts

@@ -1718,15 +1718,16 @@ export class GitpodServerEEImpl extends GitpodServerImpl {
 
         try {
             const allTS = await this.teamSubscriptionDB.findTeamSubscriptionsForUser(user.id, new Date().toISOString());
-            if (!allTS.find((ts) => ts.id === teamSubscriptionId)) {
+            const ts = allTS.find((ts) => ts.id === teamSubscriptionId);
+            if (!ts) {
                 log.error({ userId: user.id }, "Cannot cancel: unknown Team Subscription (legacy)", {
                     teamSubscriptionId,
                 });
                 return;
             }
 
             await this.chargebeeService.cancelSubscription(
-                teamSubscriptionId,
+                ts.paymentReference,
                 {},
                 {
                     teamSubscriptionId,
@@ -2648,7 +2649,7 @@ export class GitpodServerEEImpl extends GitpodServerImpl {
                 continue;
             }
             const url = switchToPAYG
-                ? `/switch-to-payg?teamSubscription2=${ownedTeamSubscription2.id}`
+                ? `/switch-to-payg?teamSubscription2=${team.id}` /** yes, team.id */
                 : "https://www.gitpod.io/docs/configure/billing#configure-organization-billing";
             result.unshift({
                 message: `Your '${plan.name}' subscription for Organization '${team.name}' will be discontinued on March, 31st.`,