Try a different browser.
I had a problem with a specific website (relatively high risk - MVNO nothing skanky, but) looping trying to get the account & pin to port out a cell# on Edge. Worked fine on Firefox (yeah, I know, but - next up was Chrome, then Kiwi, then oh, Brave or something like that)
-----Burton
50+ year / Life / Emeritus
ANA member (joined 12/1/1973)
Life member: Numismatics International, CONECA
Member: TNA, FtWCC, NETCC, EveryCountry (online) coin club
Owned by three cats and a wife of 40+ years (joined 1983)
Author: 3rd Edition of the Sample Slabs book,
https://www.sampleslabs.info/