Alpha and Yapps Garages

I went to my local Fiat independent garage because particularly in slow start/stop traffic my car wouldn’t go in gear at times. But if I pumped the clutch it would and top of this the clutch is squeaky.

So the garage fitted a new clutch as they said that was the issue. They Charged me £680.
Drove for a week and noticed the issue came back with the car regarding getting it in gear.

The garage checked my car again and said the slave and master cylinder would be the issue and the connector/piping between them has rusted. They want £529 to change both if I decide to change it.
In meantime, they refilled the oil in the cylinders and bled the clutch and said ‘see is this helps with the gear change’ otherwise the slave/master needs changing.

I tried to negotiate a discount on the £529 for the master/slave - but the owner wouldn’t budge