I’ve asked this Monzo chat but can’t seem to get a straight answer.
I simply want to know if using the pay in 3 over 3months using Flex affects your credit rating differently/adversley than just using the single usual payment option, even if the 3 monthly payments are made on time.
The reason you can’t find out is that no one actually knows how lenders make lending decisions. We know broad strokes, we don’t know in this level of detail.
Generally, it seems unlikely this would affect any lending decisions much, the only exception being if you want to apply for credit in the next three months the outstanding balance may affect the amount a lender will lend you.