I believe the way it works is that the upper half is not accumulative, while the bottom half is accumulative. Meaning that the EXTRAS are stacked for each package, but the top layer are just as they are stated. The + shown in front of the Tokens does not mean + prior given tokens, but rather you will gain that many extra tokens for having that package. The number of tokens you receive are solely based on the max package you have, so a person with Master will have 5000 extra tokens, while a person with Legend will have 10,000 tokens (As Legendary gives 10k and not 5k as shown on that screenshot).
Also, you only have the benefits of the package that you, yourself have, as we can not have more than one package. Lower packages are considered to be "upgraded" to the higher versions which is why we have the discounts when buying higher tier packages. The total cost of the high package should remain the same regardless if we upgraded to it or just flat out bought it.
Packages given as gifts, apply all their benefits to the giftee and not the gifter.
Hope this helps!