Bad client service

I had a very bad experience with one of the client care agents on the Thursday morning, I ordered something online for the first time and when I got my order number I realised that my delivery address was wrong so I called in to change my address however the agent that was assisting me was very rude, he asked for my ID number to verify if I was the right person calling then I did, he asked for my number and I provided it. He wanted me to confirm the old address that I was using before he can assist me in changing to the new address, I gave him the address that I knew however he kept on telling me that it's a wrong address he wants the full street name and the area and when I checked my invoice the address that homechoice has as my delivery address it's the same one that I was giving the agent. What annoyed me the most is the attitude he was giving me, he said there's nothing he can do for me until I can remember the full address and next time I must send an email to change my address. Why should I struggle to change my address because my order has to be delivered and if my address is wrong how am I gonna get my order? I cancelled my order because of the service I got from your agent and I won't be ordering anything from Homechoice ever again.