On Thu, 21 Mar 2019 13:08:38 +0000, Steve Walker
wrote:

On 21/03/2019 08:19, Brian Gaff wrote:
I've noticed a gradual rise to mobile numbers as well over say, the last
month or so.
some are not spoofed but genuine chancers trying to sell stuff, usually
some financial service or crap junk from China.

At least some do have an opt out number to hit, and having checked this
against charges, it seems to be legitimate and worked.

Those opt-outs should be changed to opt-ins - it's very hard to opt-out
when you've picked up the landline on an only slightly updated, 80 year
old, rotary dial phone!

Except they are not really opt-outs at all. They are a method of
checking the number is valid thus increasing its value when sold on.