No I spend about 7 to 10k per month I will use it until they cut it off but I will use a bit less now since bank of america is giving me 3% cashback up to $2500 in spending each month any category I choose. So I will send less through synchrony now and build my credit and then get the capital one business card
I would say that there is nothing inherently wrong with using a personal CC for business expenses especially if you run your own small business. There are plenty of pass through business entities and sole proprietorships where it's just not necessary to make that distinction. The problem I see here is with the low credit limit, repeatedly maxing out your limit and paying it down several times a month is a red flag in any situation for manufactured spending or even possibly illegal activities like money laundering (not that I'm accusing the OP of any such thing). It's just the common signs that automated fraud-detection and compliance algorithms would be set up to detect.