Full Refund of Experience Voucher not issued - No response from Hyperli

Hyperli - You need to re-write your companies philosophy !!!

On 10th October I purchased an Introductory Flying Lesson with Lanseria Flight Centre voucher for my boyfriend birthday on the 16th October. However due to time constraints and validity of the voucher I was informed it would unfortunately not be possible to make use of the voucher. I cancelled the voucher the following day 17th October. ( Within the 7 day cancellation period) Hyperli states clearly: You have a statutory right to cancel your voucher purchase, unless otherwise stated, within seven working days of the purchase (the "Voucher Cancellation Period"). If you cancel your voucher purchase within this period, Hyperli will refund you within 30 calendar days from the day Hyperli was informed about your cancellation.

They also claim to respond within 5 days. Well 5 days later I sent another email to remind them of the cancellation and refund request. They FINALLY responded by acknowledging the refund and offered me a credit voucher for the full value valid for 3 years. I'm not interested in having my money tied up with Hyperli and being forced to purchase from them. I cancelled within the designated time and have a right to get a full refund. Needless to say, since then I have sent several emails online and directly from my own email account requesting a full refund and not a credit voucher but to no avail. My requests have fallen on deaf ears and are being ignored. I have had NO RESPONSE !!!!!!