If I understand yur question correctly, You need to contact your probation officer and let them know what is going on. Ask if someone can be sent to you for your test.
I am on bed rest for a back injury. I have a doctors note that states that i can't work, drive ext..so my question is, the probation I'll be out all week why has the call line requested me to test 3 times? So I have missed three tests.
