I don’t think there is such a thing as lifetime aftercare, I’ve just got my term and conditions out..
Section 7c: except in situation 7b, myas normal fees will apply after 3 years from date of surgery
Section 7e: for up to 3 years after your operation, where you and your surgeon both agree that further surgery is required, mya will provide, if clinically appropriate, corrective surgery, hospital accommodation, and nursing care free of charge. However if you surgeon decides that the results of the surgical procedure fall within the acceptable normal limits of surgery, further free surgery will not be available.
Section 8 : for up to 5 years from the date of the original surgery mya will provide free of charge, if clinically appropriate, corrective surgery,hospital accommodation and replacement of implants of the same size where capsular contracture occurs
I hope this helps you a bit x