@djeire84 something has come to mind about this. You've just said you were with us before, so were you using the same email and number?
If so, it might be a case that your old profile wasn't completely de-registered and that is why you are getting that error. By any chance , do you have the investigation reference number from Customer Service? If not, no worries, I'll be able to reach out to them to get this, but it might take 24 hours.
Just a thought - I often see that same 'Oops....' message on theThree website just after hitting a link, though usually only brieflly. It might be connected with my internet being slow by today's standards, so I just wondered if maybe your connection is similar. (Though I do hope not, or at least not once your booster etc has been sorted out!).
I can't remember what speeds mine reaches; it does what I want from it, and is fine for YouTube video clips and audio streaming, but it's not up to streaming video for instance.
The Oops message is one of a sequence of pages I often see briefly on the way to a link destination at Three. I don't know why that happens, but it's as if each of those pages has a timeout; sometimes it sticks at the Oops page, and sometimes it seems to reach the destination instantly. My internet signal also fluctuates quite a lot, which seems to point to it. (And maybe it would explain being one of the apparently random customers who had problems trying to re-register last year at the new version of Three's website).
I was thinking it would be worse if it was the internet! But then I'm used to being in a marginal location where the only signal available can change to a different provider a short walk away (and people sometimes get caught out by ordering a service without testing it from their exact location, especially if moving house).
I wouldn't give up on Three just yet (even without Covid, it can take a while to work though things that involve different sections e.g. the engineers/tech team).
@djeire84, just looping in with you before the bank holiday weekend. We believe you are getting this error when you try the scheduled top-up because your details from being with us before are conflicting with your new account. I'm working with the relevant teams to confirm this. If it is what we think it is, then we might have to de-register your details either on My3 or with our Top-Up vender Mi-Pay. I'll keep you updated.
Have a great weekend 🙂
Hi @djeire84, Just wanted to let you know I'm keeping an eye on this here for you. Our team are continuing to check this out and once I have an update I'll pop back here or in PM.