Morning Gary
Welcome to the Forum
At 17k I would suspect that the Bushes are OK but check that the Upper Control Arms are torqued correctly
The supplying garage should take care of that with no argument even if it means new upper arms, as these are faults that were are present at sale. Even if it is outside their 60day warranty the sale of goods act is on your side as clearly the car in its current condition isn't suitable for purpose
Push Good Luck
Dave