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
sales@mantissa.co.uk within five working days
of purchase of licences.