Business Premium is currently available for as low as 8,99 per month. If I login to upgrade my plan only the regular price (14,99) is shown? Is the sale only for new customers? Or can I just by the special offer and my plan will be upgraded automatically?
Welcome to the community!
The front of site offers are generally new plan purchase offers only. If you were to purchase this then it would be a new account you can setup, not an automatic upgrade for any pre-existing plans you purchased.