Alpac772

Hello!! I've been having some starting issues with my Fabia Mk1 HTP recently. Sometimes it doesn't react to the key being in the start position. No cranking, no noise (other than the fuel pump buzzing in the back). After some fiddling with key, or a fast turn it starts and runs fine. Now, after replacing the battery the issue seemed to go away and it had been starting perfectly. Two days later it looks like the problem is coming back, but now the fast turn of the key doesn't make a difference. Also, it doesn't look like it matters whether or not it's a cold start. What could be causing this?