There was no max. limit on vouchers you can buy in My Jio in 2021. Later they introduced 5 Qty amx. per denomination in one order but no max. limit so in multiple order you could buy. Later they reduced it to 2 Qty max per order on one denomination. Again multiple orders were not stopped.
Also till Jan 2022 there was no limit of max. number of queued up plans as my max. reached 94 because Jio was giving me 98_14 days UL Calls + 1.5/Day with every recharge of 98 and above. Now there is max. limit of 50 queued up plan per number while you can then buy vouchers with no limits but only per order limit.
I invested around 50K on rec queueing, vouchers etc. between Dec 2019 to 2021. 399/444 vouchers with Rs.50 discount coupon bought in Dec 2019 heavy quantity for each number as I knew Jio services will stay upto mark and after 5 years I can say it did. Still having some qty of 399/444.
Then there was 20% Jiomart cashback offer in Oct to Nov 2021 and done family recharges through it at 20% discount i.e queued up till 2025. Also bought many vouchers that included 329/1299/2121/2399/2899 etc. In between recharged 395 also at 5% discount.
Before last price hike bought 1559x5 vouchers and all these will be having UL 5G with them.
These vouchers giving UL 5G also as the last I activated of 329 on my father's number on Dec 11 gave it.
I made a longer term view and analysis of telecom tariff and invested heavily for myself and family. These days my parents are happy with it when tariffs have almost 2X-3X from 349 for 84 days to 799/899. Even FD don't give such returns. So invested wisely and reaped result. 90% of people aren't even aware of queueing or vouchers and only 10% know or invest in them.