I'd take them to the vet sooner - why wait 2 weeks? Have you treated scale rot before?
I'm not an expert...and the photo is only a partial of one snake, so really hard to give good advice! Yes, very important to let snakes settle in, but also it's important not to let them get an infection - so vet is always the best bet if you're not sure!
When did they shed last?
I'm assuming that the enclosure is nice, new, clean set up as you've only just got them? Probably start by removing all the "bits and bobs" and just have simple hides (one cool, one warm) and keep the substrate to a simple paper towel to be able to change it frequently and reduce re-contamination.
Are they in the same enclosure?
I’ll try to answer all your questions in order.
1. I have to wait two weeks as there’s a waiting list at most reptile vets after the Adelaide lockdown forced all vets to cancel non emergency appointments, so now there’s a bit of a wait.
2. I’ve never treated it before but I know what to do, my main concern is when to start treating it. I don’t want to stress them out by bathing them in the first week.
3. I don’t know when they shed last, the shop didn’t have them for that long.
4. I’ll attach pictures of the tanks, the tanks and everything in them gets cleaned once a week. The plastic container water bowls are very temporary, I’m picking up ceramic bowls tomorrow.
5. They were cohabitated at the shop (I didn’t buy them, my dad did and I had to pick them up, I currently take care of them as they were a ‘gift’ to me) I no longer cohabitate them.
I was also told that they were both two years old, but the female is a lot smaller than the male. My best guess is that she’s younger, as she’s not thin.