Monday
Monday - last edited Monday
Who is "they"? GoMo or 48?
If it's GoMo then you'll need to contact them for assistance.
To port your number from your old provider to 48 you need to follow the instructions here:
What error message are you getting?
Are you sure that you're entering the correct account type details?
If you need to contact 48 support about this then see the links in my signature below.