I bought a Gtech vacuum cleaner from Argos in June and a couple of weeks ago it started to make a clanking noise ...I just ignored it and hoped it would stop ( as you do )
Anyway yesterday the right side wheel fell off so I took it back to Argos today and I feel as though I have just been in the twilight zone.
The lovely sales assistant explained that he would have to ring Gtech direct as it was a manufactures warranty. After a few minutes discussion he passed the phone to me .
Firstly the Gtech customer agent told me she would be sending out a replacement wheel with instructions how to fit it.
She said delivery would take between 7 and 10 days as they have a backlog.
I asked if this was a common problem and she said it was particularly with the model I have and that's why they had a backlog.
She then asked me to turn on the cleaner and hoover the floor while she listened over the receiver.......this is in the middle of the shop ...and then said it sounded fine to her 
She then said "don't use the machine until you receive the new part" I said that it wasn't reasonable to expect me to not be able to vacuum for 7 - 10 days.
She seemed a bit taken aback that I would be questioning this and explained to me very patiently that she was obliged to give me a delivery date for my benefit as part of Gtech customer service.
I said that that's fair enough but it's not right to expect me to wait so long without a working vacuum cleaner.
So she then said " well you don't want the other wheel to fall off do you ?? Ok then use it and I'll send you out 2 wheels in case the other falls off too !!!!!!!
I was so surprised I never even thought to ask how she could tell my vacuum cleaner was working properly over the phone.
Anyway the Argos assistant was as taken aback as me and said to contact Gtech direct if I have any further problems and ask for a reference number for a replacement as Argos are unable to refund or replace without GTechs agreement.
Please tell me you think this is madness