Need 20 microsoft points UK

I need help please. I need 1320 microsoft points for borderlands 2 season pass. I can buy an 800 code and 500 from xbox live but i dont want to buy another 500 as microsoft would want me to. Basically i will give i think i have 500k runescape gold and a 48 hour xbox live trial for any amount microsoft points that is 20 or more, i know you can get 160 codes so one of those would be fantasic!
Just found 4m in my kingdom. Ill pay 4m for 20 or more microsoft points UK. Thanks. Can also throw in a 48 hour xbox live trial or two Be saving me £5 be a real help thanks.