Yes, you can Upgrade/Downgrade your service anytime you want. To know how to upgrade/downgrade any service check this link
Now let us assume that you are having a plan named HOSTING1 whose cost is Rs 100/- and you want to upgrade to another plan named HOSTING2 which costs Rs 200/-. Now let say you are in the middle of the month and you are afraid that you need to pay for the whole amount in order to upgrade the plan.
DON’T WORRY, RELAX!!!
Let me tell you the best feature you can avail here at Redserverhost. In the context to the above situation you will only be charged for the remaining days i.e 15 days for the HOSTING2 Plan. Hence you only need to make a payment of Rs 100/- for upgrading the plan. Our First Priority is Customer’s Satisfaction.