--- a/tests/src/app-promotion.test.ts
+++ b/tests/src/app-promotion.test.ts
@@ -504,7 +504,6 @@
   
       // caller payed for call
       expect(1000n * nominal > callerBalance).to.be.true;
-      // todo:playgrounds look into. why did it work before with 1000n, and is now 100n?
       expect(contractBalanceAfter).to.be.equal(100n * nominal);
     });