
Hi Joelou, sounds tricky. I am surprised that it is so narrow as most have basic standard widths etc. However, if it is supposed to be suitable up to xxkg (buggies usually go by weight rather than age), which will certainly be way beyond the weight of any 8 month old baby, then I think you could argue that it does not do what the description said it would.
I would not accept that 'well we've never had any other complaints' is a good enough reply to be honest.
Do you still have the original packaging? If so, check out what weight suitability it says.
Laura