Engine oil leak

[Joshh]

Right soo i took my car into a garage last week as i saw little drop of oils on the floor everywhere i parked they said it was my rocker cover gasket and also my manager and a mechanic that i work with said it was the rocker cover gasket, i also took my vehicle to renault a few days before and the mechanic said if we do your rocker cover gasket we will have to change the timing belt soo i then took my car to the local garage i used and they said their wasnt a gasket soo they used a sealant instead also they change the water pump and did the timing belt (kit) anyways it was ok for a day or two no oil underneath my car but now there seams to be drips again on the floor should i take it back or could it be something else?

Thanks also hope it all make sense