Not sure if this has been covered or anyone else having this issue

When I sent a PM to someone with the numbers "1 2 3123" in a row with no spaces it automatically deletes them when I sent the PM

Example

if I type - "hello123123" will send as "hello"
^--- does this in thread also I typed "hello 1 2 3" with no spaces and it deletes them

really bad when I am trying to send someone my paypal info and my account address has 1 2 3 123 in the PM