I'm using Textmarketer incorporated into aworka. I schedule my texts and they send fine. Only problem I get is to a handful of landline customers that don't have mobiles. They rarely receive them. It's really hit or miss to landlines I find. I think I've done what they say https://www.textmarketer.co.uk/blog/2010/04/bulk-sms-documentation/sending-sms-text-messages-to-landline-telephone-numbers/ but it still doesn't seem to work. Anyone else have this problem?