Impossible to change my first name

[Anonymous]

I want to change from a Pay & Go to a Pay Monthly. When I set up my account, I put my official name. 

Minh Tuan. However, when I can to order, I get a message "Enter a valid first name between 2 and 20 characters. No spaces or special characters". I cannot enter the textbox. It shows green but just cannot be changed, forcing me to make a phone call to order. 

[MI5]

You are better off calling or going in store anyway.
The website has loads of issues.

[Cleoriff]

Very weird. Is the website not accepting the OP's official name...or not allowing ANY name to be inserted into the text box.?

[MI5]

The website is weird.
It won't accept some peoples bank details so why should names be any different!

[MI5]

@Anonymous Have you just tried Mr ?

[Anonymous]

I have tried. 

It's just not working. Flimsy website.

[Cleoriff]

Flimsy. Good word. Follow @MI5's advice and go instore @Anonymous

[MI5]

Looks like there's no other choice, but at least you'll know if they have stock without handing over your money and waiting weeks