it's not that simple instagram is doing verification by phone numbers, can't use the same number twice
I do have a second phone for that but you get my point.
buying sims & switching them is alot of hassle if you can't even get a whole account in one go.
when your account get's locked it stays locked for 24-48 hrs. it also requires video verification which often fails leading to another 24 hrs of a technical ban.
second violation can be a couple of days up to a week.
since this app is using my username & password i can't really see how it will be different but i will try & let everyone know my findings