My bad experience with themes.getbootstrap.com (Customer)

[ignacio-fm]

Hello!, I leave here my bad experience with themes.getbootstrap.com, on September 7 I bought a Theme (Silicon) for $49 in the official marketplace of the Bootstrap repository, today I do not know what company / person is behind.
They comment on their support Zendesk (https://themes.zendesk.com/hc/en-us/articles/360000011052-How-do-I-get-a-receipt-for-my-purchase-) that they offer the invoice option for companies with a VAT number (as is my case), well, after 1 month, 4 emails and 1 open ticket in Zendesk claiming the invoice, I'm still out of touch with getbootstrap.com.

I can understand that they cannot issue the invoice, for the reason whatever, but please answer me, tell me and proceed with the refund, for not fulfilling your part of the service, stipulated in the previous screenshot.
I am commenting on this here in case you are a company thinking of buying and audit the purchase cost, keep in mind that the claims will be ignored and you will not receive any invoice.