Actually it's a question to Billing and Order Customer Care but was always getting redirected to the forums.
So raising a support ticket here...
Tried to purchase four licenses of Flash Builder 4.7 Standard Version couple of times.
Every time got a error message saying,
"There was a problem processing your order, please contact our Customer Service team on 0124 4003810 or 000 800 440 1751 for assistance."
Seems an issue with Adobe Store.
Order No 10100833459, 10101089259
What are the alternative methods to purchase license keys?
Need to purchase them urgently on priority.
The orders are currently in review and you will be notified when they're approved.
To avoid a duplicate order, please let us know which one should be cancelled.
Please cancel the order number 10100833459 as it is the duplicate order.
I'm afraid that both orders have now processed but I will arrange a return/refund for order 10100833459 as requested.