Having referred a friend 6 months ago I am still waiting for £30 credit on my account.
I have wasted numerous hours in the endless circle of chat bots, one time I did get through to an agent who promised a credit would appear on my account, alas it was an empty promise.
Next stage is to reach out to my 14,500 followers on Linked-In to spread the word of the poor service, and then Instagram followed by facebook until the company fulfils its obligation.
Its not the £30 that matters, it is the principle.