Shame on you Guido's East London Beach Front

I have booked a party here at this place for my 1 year old daughter over a week ago for 8/4/2016 and I paid e deposit. the invitations were given out and everything planned for this date. I received a call on Friday 29/04/2016 telling me to come collect my money because they cannot have parties on this date due to it being mothers-day. bare in mind the invitations have already being given to 30 kids. So I asked them for a refund for the invitations as they were custom made fairy invitations because the whole theme is tinkerbell, they tell me they will refund me 3rand and invitation because that's what the price of a Guido invitation cost. Extremely bad service from QUIDO'S BEACH FRONT EAST LONDON