Not sure if anyone knows if there’s a way to escalate an issue to Hilton customer service. Had a free night certificate attached to a reservation that was cancelled in October and certificate was supposed to be returned to account. Tried to make a reservation on December 2 and was told a known system glitch occurred and certificates were not redeposited back to account but they created a help ticket and would be fixed in 7-10 business days and to call back. Called 3 weeks later and was told nothing has been done on account. Agent couldn’t get a hold of a supervisor so said to call back later in the day. Fast forward to today several days later and spoke to multiple agents who said there is nothing they could do but try calling again later with no estimate on when the issue would be fixed. Just keep calling back. Tried to escalate it to someone with authority to get something done and was placed on hold for another 15 minutes and then just hung up on. After 3 phone calls over an hour each time I don’t think it’s acceptable to keep calling back and to be hung up on. Anyone having a similar issue or know who I can contact to get real assistance. I’m trying to book a hotel and I’m afraid by the time the issue is resolved there won’t be availability.