All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad is His slave and Messenger.
Your prayer, fasting and all other acts of worship are correct, meaning that you are not obliged to make them up as long as you performed them fulfilling their pillars and conditions. However, you must return the money you took without due right to its owner, because taking forbidden money may prevent you from the reward for those acts. It may also prevent your supplication from being answered whether or not your mobile phone is in your pocket.
For more benefit, please refer to Fatwa 85498.