Cellbell chair is a DIY (Do-it-Yourself) Installation product, it doesn't require any service expert to be available for Installation or Uninstallation. Also, service person costs are not included in the product price as most customers doesn't require a service person for this product.
Service Experts for Installation and Uninstallation and for any part replacement installation are available at select locations and it's a paid service (non-inclusive in Product Price). Within 48hrs, you can expect to get a service person assigned for your case. You can place Service Order using this Link: https://cellbell.in/products/extra-helping-hand-service?variant=42485610578136 Note: Service and Parts cost extra if any damages result from usage.
Please use these useful Installation Video Links:
C104 Medium Back
C83 Medium Back
C103 Medium Back
C106 Medium Back
C102 High Back
C100 High Back