wiilydog

sounds like the ignition assembly is worn (the bit that sits behind the key barrel) as they do wear out with age and cause the key to be difficult to turn. See example below but you will need to double check if the part number is the same as yours https://www.ebay.co.uk/itm/FOR-AUDI-SEAT-SKODA-VW-IGNITION-STARTER-STEERING-LOCK-BARREL-ASSEMBLY-1K0905851B/233268128680?_trkparms=aid%3D1110006%26algo%3DHOMESPLICE.SIM%26ao%3D1%26asc%3D20200520130048%26meid%3D598f0272344a4044a0ecb00e86bc5e16%26pid%3D100005%26rk%3D4%26rkt%3D12%26mehot%3Dpf%26sd%3D173854752485%26itm%3D233268128680%26pmt%3D1%26noa%3D0%26pg%3D2047675%26algv%3DSimplAMLv5PairwiseWebWithDarwoV3BBEV2b&_trksid=p2047675.c100005.m1851

based on current UK prices of £1.117 / litre for diesel and £1.087 / litre for petrol you would need to achieve mpg 43.43 mpg to get the same cost per mile as for 1.2 petrol (@ 42.27mpg)

have you checked the battery? as it sound like a flat battery

you will be better off finding the part numbers using bilstien online catalog as Euro car parts fitment can be a bit hit and miss. with it being a VRS it will be the shocks for sports supension and the front shocks will be the 55mm ones B4 will be OEM replacement B6 are mono-tube (an upgrade but will cost double the price B4s) https://www.bilstein.com/uk/en/

Ebc yellow stuff pads + ebc discs

you can also trying hammering a smaller six sided socket on to the bolt if you are struggling to find a replacement key.

immobiliser chip is in the key flop, so if you are replacing the complete key fob and not just the key blade you will need to get it programmed.

as above if you turn the ignition on with airbag disconnected you can only clear the warning light with vcds