Stanley Tryner-Qatar Airways-1702492459

My wife and I traveled with Qatar airways on 11th December flight QR 909 Sydney to Doha onto London Heathrow. We had one extra Large suitcase. We contacted Qatar Airways on October to purchase this extra luggage, but was told that it was arranged by BA, so we would have to go back to them. We did. They told us the flight was a Qatar flight and we should go back to them. Qatar website would not allow us to do the purchase and save us the 70%. We left it until we got closer to our flight from Sydney. We tried again online, but still the same responses. As we were due to check in 24hours before 10th December, we phoned Qatar airways Sydney and spoke to customer reservations a person called Rohit Raj. We explained we wanted to pay for 1 extra hold luggage. He informed us we could do this online via Qatar airways website. I explained that we had tried this several times, it informed us to go back to BA and then vice versa. So can we do it on the phone with you now. He put us on hold to speak to an adviser. After 5 minutes he came back on the phone to inform us he could Not!! But we could purchase this at the check in desk at the international airport in Sydney. I explained that I would not get my 70% discount. He said we should!!!! On arrival at check in at the airport, we enquired about the extra luggage. The young girl was very very sympathetic, but said he should have helped us purchase this extra luggage on the phone. We would now have to pay the full price of AUD 163:00. We had NO CHOICE!!! She suggested we make a complaint, because we did all the right things and got treated badly by Customer Reservations. They should have let us pay. Our flight details Mr Stanley L Tryner Mrs Julie V Tryner Sydney to Doha Flt No QR909 11/12/2023 and Flt QR 0003 12/12/2023 Doha to London Heathrow. We feel deeply let down that Qatar Customer Reservations should have let us make the 70% saving by purchasing it on the phone that day. Especially after being banded from one website Qatar and BA. Neither one allowing us to make the purchase. Mr S L & Mrs J V Tryner