Service level

Hi How is it possible that I have a guarantee on my hair straightener which theres not a single technician who does repairs I got it as a gift and was purchased at clicks they cant do anything without a receipt how can I have a receipt if it was a present ... they cant even use a barcode to trace it nor a bank statement from the person who bought it however I asked if theres a technician from toni and guy who can assist they cannot how is this possible can someone help me urgently They are refusing to help me from clicks this is pathetic honestly