Your Garmin help, please

I had it replace with a refurbed unit - they wanted to make me buy a new one, until I kicked up a stink that they had sent me a shitty refurb previously.

It seems to work ok at the moment, but I expect I'll need to send it back once the onboard storage fills up - I suspect that the pisspoor onboard space management is the cause of the data not being transferred.

Either way, I don't use it for beik rides any more, just running & swimming.