Re: TL;DR but what is it with ****ing developers
They ask for country code and had the expected county code starting with a + already filled in. It then refused the accept the + as it only allows numbers
Heh. Copy-paste coding. The net is rife with examples where a phone number is supposedly "validated" so that + in front is not allowed. Eg. https://stackoverflow.com/questions/2386054/javascript-phone-number-validation
I too encounter this all the time. There is a legit workaround: "00" is usually acceptable as an alternative to "+", but not in all countries. In fact, the "+" notation was introduced precisely because of the variation in international prefixes. (But probably there are some moronical web sites that forbid also phone numbers stating with zeros).