@Mark O it seems like you just enjoyed your first tieguanyin oolong and may have assumed that this is a very specific tea from a specific source that comes in that very box, however, it is not.
You can get this type of tea from a thousand vendors, and also in higher quality than from these kind of gift boxes, so you do not need to search for this exact commercial product, you can just buy some tieguanyin from a variety of sources and further explore this tea type. That hopefully is good news. I have three versions of it in my cupboard right now.
Authentic tieguanyin teas from different sources will generally all taste a lot like this tieguanyin you have (provided it was a decent one), so the differences will be in the nuances, and how hard you can push the tea through water temperature, infusion duration, and number of infusions, with higher quality teas giving more without undesirable flavours coming out.
This tea is an oolong, which is a broad category of tea (tea type) specifically processed to be very aromatic, and oolongs range in oxidation level from being very green to very oxidised and heavily roasted. Tieguanyin comes in quite green (more of a modern twist on it) and in darker (more traditional processing), and it is likely you had a greener processed representation based on your description.
So you could go and find a reputable tea shop in your country, search for tieguanyin or tie guan yin, visually confirm that the little leaf balls are of a greener appearance (lighter green tones rather than very dark green or brown), and sample that. The origin should be Anxi county in Fujian Province, pickings ideally spring. I suggest you pick a tea shop that discloses this tea origin information with as much detail as possible to avoid getting low quality, imitation, or artificially enhanced teas. Don't care about packaging, just about a reputable source. It is often the inferior teas that are being dressed up to sell in the bulk gift industry.
