Too old to update

Sueholl Registered Users Posts: 1
New Traveler
I have a Tom Tom Start which I admit is quite a few years old however is in perfect working order and has served me well.
I spent over an hour this weekend downloading My Drive then for it to say I needed to download Tom TOm to update my sat Nav which I did for it then to tell me my device is too old to update.
This is appalling service !
Why should I have to buy a new device when mine is in full working order.
Is there a package I can purchase separately just to update it rather than have to buy a new device ?