Congrats on your cli
Congrats! From what I've read here, you always call to speak with a human or through chat for credit increases. Now, if I could just get Synchrony to let me in.
If I'm not mistaken (synchrony bank), I believe you can request up to 25k limit. If you're approved, awesome, but if not, they usually counter. I have a joint account that they declined the $25k but approved me for $10k. Starting limit was $2k I believe and I requested an increase every 6 months before finding out about the "request high and accept counter" offer.