Hello mate, welcome to the forums
The qualification you should be looking for id the C&G 6129 followed by the 6089 which is your NVQ level 2. There are a number of ways in which to do this, the most cost effective and probably best method being through your local college but it will take you around 2 years to complete if only doing it part time. Another alternative is through companies such as OLCI where you can gain the qualification in as little as 4 months but this is very expensive. The choice is yours!