Unlink phonenumber

Hello all,

I have multiple blizzard acounts. On one of those acounts i have registered a phonenumber wich i unlinked/deleted to get ready for the ow2 launch. I now try to link my phonenumber to my main acount. But alas i get a message that my phonenumbver is already in use. This has resulted that i now have 0 acounts with a phonenumber but i cant fill in the number because of that message. Does anyone know how to Fully delete a number for a acount?

p.s. it is also weird that i deleted my number on acount x and blizzard still reconizes it als “already in use”. i mean when i delete personal info why is that info still stored somewhere?

p.s. 2 sorry for the bad English

thx all in advance!