F.A.Q.

Top questions

We have been operating for a few years and have never once had a client get in trouble or have any police problems. Also, we do not keep any incriminating long-term records. So, our team works to ensure your safety. However, remember to be discreet on your end as well


Almost all orders are shipped within 1-2 business days maximum of receiving payment for USA and 3-4 business days in UK and All European country. and for india, it takes 5 business days, Standard mail can take from 5 business days to reach you, depending on where you live


The Customer Service Department is available Monday through sunday , 24/7. For immediate concerns or assistance We are here to help and can be reached by email or through Live Chat.

​Live Chat is a helpful tool for discussing the product and asking general questions.

Emailing info@ultimateganjastore is a great way to seek out assistance. You will receive a timely response from a representative ready to help!

Email: info@ultimateganjastore.com


What to look for:

Pricing:  If the product you’re looking to purchase is normally $99.95 and you’ve found this item for $49.95, that is a red flag. All authorized retailers will sell our products for no less than the price listed on our website.
UPC Code: The majority of Grenco Science products will have a bar code with a UPC Code on the back. If the box in which your product came in doesn’t have this, please call the Customer Service line to discuss the authenticity of the purchase.
Pen(s) wrapped inside of the box: If you notice that the pen(s) are wrapped individually in cellophane INSIDE of the box, then the product is probably inauthentic.
LED light: Unless you have an Artist or Charity Series product that displays a different LED light than the standard blue (for example: the Huf Original microG has a green LED light and the Claw Money Original microG has a pink LED light) the product is counterfeit.

Any one who is over the age of 18  can buy from us. We don’t sell to minors we are very strict on this policy and there are no exceptions to that.

Yes. If you place an order you will receive high-quality cannabis products delivered safely to your mailbox or front door via FedEx,UPS or DHL  and a valid tracking number will be given to you which you will use to track your package until it gets delivered .Also, we have many happy clients across the world.


We offer a 1-year warranty on all electronic items (not including Tank / Coil systems). If you’re experiencing an issue with the G Pen Battery, please contact Customer Service for information on how to get the item replaced. In order to qualify, you must have purchased from our website directly or have a valid receipt to show the date of purchase and the store in which it was purchased from. We do not assist with counterfeit products or any items purchased from third-party websites as most of the counterfeit items are distributed through those channels.

If you have any further questions please contact our Customer Service Department, which is available Monday through Sunday


No. Our package is  top discreet and nondescript.Everything is sent vacuum sealed and the is no smell.

Please contact us immediately we will deliver another one.

We have 7 days maximum of money back guarantee. If an order does not arrive at your location then we will refund you.

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