Thank you to Houston call center service

Shout out a big thank you for Ms. Sharon in Houston (formerly from Tulsa) and her manager, Ms. Ashley, for fixing the sim activation date on my new cell phone/upgrade to 20 year account, ordered directly from AT&T which had been erroneously programmed (by AT&T) to activate 2 months from purchase date. Received it w/in 24 hours (wow!), but after a week later of: 1 retail store visit to fix, the store manager refused any customer support (yes, I had an appointment!), 6 phone calls to customer service with 5 CSRs and 3 managers, and 3 AT&T call disconnects and supposedly written "a technical IT service support request" that did not materialize, on the 7th call - AT&T Houston call center stepped up and found the problem, reprogrammed the account, but the sim card had to be physically replaced in the new/upgrade phone.  Then local AT&T store replaced the sim card on the wrong phone line and had to redo 2 phones!  Thankfully the new phone is now operational, but still having repercussions from erroneous sim card replacement on other phone.  Does any one besides Houston call center understand customer service?