<h1>Indian Taxpayers Face Challenges Transitioning to GST: Provisional ID Issues, OTP Problems, and Login Difficulties. Contact Helpdesk.</h1> Existing taxpayers in India transitioning to the Goods and Services Tax (GST) system face various challenges, including incorrect issuance of provisional IDs, issues with OTPs, and difficulties in creating new usernames and passwords. Taxpayers are advised to contact the GST Helpdesk for assistance with these issues. Provisional IDs are issued based on the taxpayer's PAN and state, and only one ID is provided per state, regardless of multiple registrations. In case of errors or technical issues, taxpayers are encouraged to clear browser caches or check email spam folders. The GST Helpdesk provides support for unresolved technical problems.