Hi everyone. I'm new here so I hope I've posted in the relevant area of the forum. It was a bit confusing when searching for a section to post in about Twitter as the only section for Twitter I found was under Business & Marketing. If this forum is only for business and marketing questions then please will you direct me to a suitable forum for general personal user questions. Thanks. But if this is the right place then I'm wondering if you can help me out. I have just installed the Twitter app on my Galaxy S8 android mobile phone and am having problems when trying to change my mobile number from old to new. I've tried the following formats +44 7488 ****** +44 07488 ****** 44 7488 ****** 44 07488 ****** 07488 ****** with and without the spaces. It will not accept any of them and just says please enter a valid phone number. It shows my current (old) number as +44 7742 ***** with spaces. So I have no Idea why it's not accepting the number in the same format as the current one or any other of the formats I've tried. Has anyone else had this problem when entering a phone number in to the Twitter app? Many thanks in advance.