Applying for new CC, don’t understand a few things.

I have been banking with Wells Fargo for multiple years and have built my credit card limit up to $13k, utilizing up to roughly 30% before I pay it off each month, never been late. I have other CCs that have slightly lower limits that I don’t use as often.

I’m switch from Wells Fargo bank to SoFi bank, and after opening a checking/savings with SoFi, I applied for a credit card through SoFi (2% unlimited CC) but was only given a limit of $2.5k. Is this only because I have no banking history with SoFi? I need a CC with a limit that will allow me to use roughly $4k per month. Or am I doing this all wrong? I really don’t want to bank with Wells Fargo anymore and want to get out quickly. Will this destroy my credit making this move? Do I just keep the Wells Fargo CC? I’m a bit lost here. Don’t know much about how all this works and right after this post I will be reading up as much as I can on what to do.

Thanks in advance.