I hate that there is  no shopping cart for mass purchasing from the shop

Plarium does have deals that want me to act from time to time 

So I wanted the chained offer which required 7 purchases (I think it was 7). I started buying them individually :/

By the 5th purchase my credit card shut down  on a possible FRAUD attempt.  I replied to the credit card to let them know it was really me making a series of charges in a row and was able to complete the chain but was not a nice experience

WHY can I not put all of them into a shopping cart and make a single game purchase?

If you want  my money in the future make  it easy for me because right now without a shopping cart to make multiple purchases at once is not a plesent affair and more likely to make  me NOT do it again