Apparently when you contact a girl it would still show a link to your old account. I guess it recognises the ISP.
No, AW doesn't recognise your IP or ISP, that would get way too messy (e.g. people using a VPN or using WiFi in hotels, coffee shops etc). It simply recognises your browser, presumably due to cookies. As such you can easily have two or more AW accounts on the same device. E.g. On my punting phone, I have one account on Google Chrome and one account on "Samsung Internet". The key is to keep the accounts separate by only logging into one account for one browser, never at any point login to an account on more than one browser.
I presume clearing your browser (particularly of cookies, either all of them or just the ones for AW), will then allow you to create a new account without it being linked to the old one. I'm not totally sure though, I am however sure that using a new browser (in which you've never logged into AW before) would work.
I imagine it's also important to make sure that for your new account you use a different email address, username and password to the one for your previous account.
To be sure that you're new account isn't linked to your old one you can ask a WG that you "trust" and if you want full proof ask her to show you your messages to her in her inbox - if there's only one lot of feedback showing then the accounts aren't linked. If they were linked the other alias would show up as another lot of feedback, e.g. Punter1 (0) (26). If you have any negative feedback on the alias account (regardless of it being disputed or you having loads of positives), the feedback that appears will be shown as a red number.
I have recently made a major cockup on my AW account, making me look like a world-class TW.
Would there be any point of wiping my AW account and starting again?
Would my (bad) record still follow me?:
Any help on this would be very much appreciated.
If you have plenty of positive feedback it won't make a difference regardless of how bad a timewaster you sound. I received a mostly bullshit negative feedback from a reputable WG saying I was not only a massive time waster but also an "address collector" and very rude.
I was even reported on SAAFE saying the same thing but it made absolutely no difference to my ability to book girls. I'm sure it helped that I had about 40 previous feedback all positive and after I got the neg. I messaged a couple of girls I'd seen but not put in a booking for or been given feedback from and asked them to leave me feedback (all genuine) so the negative wasn't my most recent feedback by the time I tried to book someone else and that probably helped too.