Thanks for not only confirming, but also agreeing to what I passed comments on.

Would you buy a car before buying, try on clothes, try a sofa, no you would not,

A phone line is a critical piece of equipment and to place faith and trust in a company like this is a major red flag.

Try else where.

It also has to be noted their response is so slow, another indicator of a major red flag.

Deff try else where, there are at least 3 good ones in UK