Klaviyo: Email Marketing & SMS

The dynamic coupon in the flow automation stops working for more than a week. After I reported the issue, the support just tells me that it must be I made some changes to the coupon which causes the issue. But I am very sure no changes had been made and ask them to review my activity. Then only they acknowledge it is a bug from their side. So the support tells me that they are working to fix it (no ETA), meanwhile either use a static coupon code or stop giving coupons. 5 days passed and it is not solved yet. Absolutely dissapointed with this lousy service.