So is it likely the prices for components at PCS increase due to the coronavirus situation?
My build has gone up by £1 since ordering but a GPU I was considering jumped up by £30, is this normal with PCS prices or is the increase due to the virus situation?
Likely? No idea, its certainly possible - prices fluctuate all the time for all sorts of reasons. The prices can and do fluctuate even when there aren't viruses (etc.) causing issues.
PCS prices often fluctuate daily. They continually adjust to the stock prices available to them.
I genuinely wouldn't be surprised to see a lot of prices climb substantially over the next period though. I bought a Valve Index a wee while back and I'm thinking of selling it on with the demand