Stalling a car repair

Last year I took out an extended warranty on my VW Polo which was to kick in when the first warranty expired. The car went in for a service in December last year. Woek was done and a further insoection, as requested, revealed that the steering rack needed replacing. Knowing I had the extended warranty we went about setting everything in motion and here is where the wheels cam eoff with Budget. The go ahead for the repair was withheld due to an apparent error the sales person from budget made. In good faith I took out this policy but yet Budget attempted to punish me for inefficiency on their side. Apparently because I met all other criteria they decided to honour the policy they sold me so the repair was authorised. Yet when the workshop was told to go ahead and they completed the paperwork another person at Budget said that it was on hold because nothing had been authorised. Many phone calls later and much wasted time it suddenly was good to go. An assesor was then sent to the workshop and duly informed the workshop that they were not to replace the entire steering rack but merely the front arms and brushes. Over a week later I follow up and now the story is that I must pay for the mentioned parts and only then when a steering rack is needed will they pay. This is utter bull****. The policy was taken out in good faith and the warranty certainly covers the needed repair. Budget Insurance is doing nothing but stalling and sending me from pillar to post, wasting much of my valuable time and letting me and the workshop hang on the phone for what appears to be an eternity. Warning to all possible future Budget clients - do not believe a word they say, the one hand doesn't know what the other is doing and they certainly do not honour the policies they sell you. I shall without hestitation inform family, friends and acquaintances to stay well clear of Budget Insurance who can't honour their word and as soon as my policy ends I shall never deal with Budget Insurance again.