Dear Lexus,
Let’s talk about this new advertisement of yours.

I think we may have ourselves a bit of a translation error here. Sadly, H does not stand for “change” — not in English, at any rate. Let’s have a look in the old thesaurus and see if we can make this work.

There are two listings. First, the noun:

The act, process, or result of making different
<The positive change in our students’ attitude toward people who are somehow different was a long and gradual process.>
Synonyms
alteration, difference, modification, redoing, refashioning, remaking, remodeling, revamping, revise, revision, reworking, variation
Related Words
amendment, correction, rectification; conversion, deformation, distortion, metamorphosis, mutation, transfiguration, transformation; fluctuation, oscillation, shift; displacement, replacement, substitution; adjustment, modulation, regulation

Next, the verb:

1: To make different in some way
<mother has changed the look of our living room more times than we care to remember>
Synonyms
alter, make over, modify, recast, redo, refashion, remake, remodel, revamp, revise, rework, vary
Related Words
deform, metamorphose, mutate; revolutionize, transfigure, transform, transmute; commute, convert, exchange
2: To pass from one form, state, or level to another
<the weather in New England is constantly changing>
Synonyms
fluctuate, mutate, shift, vary
Related Words
metamorphose, transmute; better, improve; deteriorate, worsen; seesaw, teeter, vacillate, waver
3: To give up (something) and take something else in return
<would you mind changing your seat so my friends can sit together?>
Synonyms
commute, exchange, shift, substitute, swap, switch, trade
Related Words
interchange; displace, replace, supersede; cede, surrender, yield

It seems that h doesn’t even stand for a synonym of change. Sorry I wasn’t able to help you out there.