My reliance jio sim activated on 20th July and the free preview offer is supposed to expire on 18th October. But from yesterday my preview offer has migrated to welcome offer due to which my 4G data is limited to 4 GB per day. More than 40 days are still left in my preview offer. Plz help me what should I do now to get back my preview offer. Post 4 GB speed is just pathetic.