Mariska Manthe the courier guy very bad service

Disgusting service from the courier guy. Dealing with Mariska Manthe who has not done her job. Last year I was due a refund to date despite constantly asking now they owe me just under 1k as soon as I call and ask where my refund is they hang up. Sent all my details in now they ask for pdf bank account details yet I sent it already. Good at taking your money any excuse not to return it