[mothered]

hoping you have some advice mate, they are asking me to get the "data" recovered and send them proof of the data being recovered from a company that dose it,

I've never heard of such nonsense.

Firstly, If "you" perform a low-level secure wipe (thereby wiping all existing sectors), the data will not be recovered, so sending the HDD to a PC tech will prove futile. They'll give you a certificate stating that no data was retrieved.

Tell them you've spent enough money on the HDD and don't have the funds to take It to a given company.