Due to the nature of these products, we regret that
refunds will only be provided at Mantissa’s sole discretion.
Our lessons are designed to run on a wide variety of
desktop and laptop computers, and make low demands
on network bandwidth.
Prospective purchasers with unusual hardware
and/or software configurations are strongly recommended
to apply for a free trial program, so they can conduct
their own investigations.
Refund requests must be submitted by email to
[email protected] within five working days
of purchase of licences.