Promotion keeps falling off account

I’m very upset yesterday. I spoke to a representative about my promotion, falling off my account. I initially tried to chat. No one really responded then I called. Rep the representative on the phone couldn’t help so I asked escalate to a manager. I asked the manager if I can get compensated for my time for having to keep calling again as this is the third time the promo. The manger threatened to cancel my account because of getting too many credits. I spoke to the chat again today. They claim to have it resolved what are my options if they don’t fix it?