With 35 years of experience using Apple products, 25 years delivering IT training, 20 years supporting and repairing Apple devices, 10 years of multiple Apple Certifications...
Having assisted hundreds of clients, literally all around the world, in dozens of countries, in various scenarios...
Being not only Certified in all of Apple's technical courses, but also Certified to teach them - and train the trainers in some...
After having started and run an Apple Authorised Service Provider, and taking it to Apple Premium Service Provider status...
I might be able to help.