Difference between Soft and Hard credit check

Jaywood89

So my Equifax is showing an enquiry made by Natwest. I’ve already been agreed an AIP but my question is. Have they done a hard or soft check on my file? I’m worried if it’s just a soft check will I be declined later for late payments on my accounts last year. I have quiet a few late payments on the 10 years Equifax is showing , no defaults or anything more untoward but they are there non the less. But every form of credit I’ve taken out (20+ accounts including car loans, credit card etc have all been paid off in full and most repeated early) I digress.

I’m wondering if I’m still in danger of failing a credit check even after a AIP. Strangley there are 2 searches in one day on the file don’t know whether that’s a typo? I’m
Not good with Equifax

Any input would be helpful thanks guys