Honestly, buying accounts is almost a guaranteed way to get banned again. Facebook detects “bought” profiles very quickly based on history, behavior patterns, IP, and other signals.
If you’re going to create a new one, do it from scratch and make it look as natural as possible: warm it up properly, don’t rush into running ads in the first few days, keep normal activity, and make it look like a real profile. Also, think about whether it was really a competitor - often bans happen because of the creatives/content itself or mass reports.
And for the future, it’s better not to build a dropshipping setup on a personal account. Business Manager + proper structure = fewer risks and fewer headaches