Thank you for your continued support (continued, continual, continuous)

• continued means that something has occurred regularly for an extended period of time and is likely to continue. 
• e.g. The continued adoption of smartphone devices is changing the way we live and work. 
• e.g. Thank you for your continued support.

• continual means frequently recurring but perhaps intermittent. 
• e.g. The dog's continual barking kept me up all night.

• continuous means non-stop and without interruption. 
• e.g. Continuous innovation has driven Apple's success.