Do I need to use hotel transfer for the Test & Go program in Phuket, or can I use Grab or another cab service?

For the Test & Go program in Phuket, it is not mandatory to use a hotel transfer; however, the transfer must be a certified SHA+ service. While some users reported using hotel transfers for their convenience and to receive necessary documentation, alternatives like Grab or third-party cabs could work as long as they meet the SHA+ requirements.