Wordpress (php) expert for woo commerce subscription modification

Hello I have a website in which there is a woo commerce subscription functionality base on monthly , quarterly and yearly. I want that when user will come and get subscription on monthly basis and quarterly and yealrly basis. then on each order basis on per month , they will get sku number which will be unique on each order and that will email to client with confirmation email and will show on backend and will show to client. Read below details please:::: 1. The customer signs up online for the service picking one of the pricing plans you just added the badge to. Based on which one they choose, they are billed monthly ($49), quarterly($135) or annually($480). 2. For the fulfilment centre integration we need to make sure, that regardless of the billing option above, that they get a different sku code each month from my site. eg. Customer signs up for quarterly billing in December 15th (charged $135 every three months) They get an email of confirmation confirming their purchase. The fulfilment centre get email with sku code A First box on December 15th and its dispatched to customer On January 15th the fulfilment centre get email with sku code B Second box On February 15th the fulfilment centre get email with sku code C Third box March code D etc. After this: If you signed up to a 3 or 12 month plan, then you will be billed on the 4th day of the month that you are set to renew. For this person it will be the 4th of March The website is [login to view URL] Thanks