gulf petrol station review: customer service 1

I put £30.00 of fuel and notice that my petrol gage still showed empty.I complained to the attendant (cashier), but his response did not make sense and he was aggresive and very rude.He spoke to me as if he was the owner of the business.I am the owner of driving school and use lots of petrol every day since I use several cars.I am verydisappointed with the service and I would like to
speak to someone who can sort this out since the number I was given did not respond.My name is Eshan moossun and my mobile is [protected].
Thank you.