Hydro brake disk blackening I have had my bike for about 2 months now and about 2 weeks in the rear brake stopped working properly and I thought it just needed a bleed. The shop assistant showed me that my disk had oil on it however I have no idea how it got there. He was nice enough to replace my pads for no cost.

About 1 and a half month on I'm having the same problem on my front and rear brakes now and they're about to charge me £35 per brake just for new pads and service charges.

Why is there oil on my disks. I am not touching the disk or dropping items on the disk and my bike is stored in my living room covered with plastic away from any liquids or any contaminants.

The back brake is okay but it lacks braking power. The front brake lever comes about 2cm away from my grip before locking out fully. However when I pump it a few times it works but as soon as I stop pumping it resets which is a pain as that means it takes me at least 5 seconds to even engage the front brake.
There's very likely something wrong that's causing a fluid leak. Hose connection, piston damage, or some other mechanical defect. They did the prudent thing before by seeing if it was a one-off/fluke situation, but now it's likely proven that it's not. What's really needed at this point is for a mechanic to inspect the hose connections in case that's where the problem is, and go to caliper replacement if not. This stuff happens not infrequently on new bikes these days, and in part depending on the brake model there can be some different reasons how it came to occur on both brakes at once. The shop I work at would cover this under warranty no question, and if it is as you say we would likely cut to the chase and just do two new calipers.