In the eighties there was no internet. Everything had to be arranged by mail or at fanclub meetings.
If you wanted to buy bootlegs you had to know who was selling them.
Usually these came from the USA so you had to go to the bank, buy dollars, send it in a registered letter to the seller and hope you'd eventually get the LP or LP's ordered.
Alternatively you could buy an international money transfer at the Post Office, send a photocopy of "proof of payment" to the seller and again hope to receive the ordered LP or LP's.
I am still awaiting 5 LP's I bought from Paul Lichter in the eighties.
By mail you would receive leaflets / flyers with information about new bootlegs if you'd be on the seller's mailing list or they would be included with the LP or LP's purchased.
Here a leaflet / flyer for "Behoind closed doors", one of the best bootleg releases ever, and "Elvis Presley Special" single with 2 recordings from the Dorsey Show. Seller was able to buy these and with the profit from sales of this single he hoped to buy the remaining 10 songs.
In those days the recordings from Elvis' 1956 TV appearances were not available yet!
When the parcel with your LP or LP's was delivered by the mailman, you'd have to pay import duties, making your purchase even more expensive.